09/03
2-96
DC 3535/2240/1632, WC M24
5-703
Initial issue
Status Indicator RAPs
5-703 DADF Belt Motor RAP
Use this RAP when directed to troubleshoot problems with the DADF Belt Motor.
Initial Actions
Remove the following:
• Front Cover (PL 20.1)
• Entrance Tray (PL 20.1)
• Lower Chute Assembly (REP 5.8)
• Rear Cover (REP 5.18)
Procedure
Switch off the power and manually move the Platen Belt (PL 20.10). The Platen Belt moves
freely.
YN
Look for binding in the DADF Platen Belt and the drives for the DADF Belt Motor. Correct
any problems
Check Fuse F1 on the DADF Control PWB. The Fuse is good.
YN
Replace the Fuse. If the Fuse blows again, go to Flag 1, Flag 2, and Flag 3. Check the
wires for a short circuit to ground. If the wires are good, replace the DADF Belt Motor (PL
20.6). If the problem continues, replace the DADF Control PWB (PL 20.3).
+24 VDC is measure at P/J595-1 on the DADF Control PWB.
YN
+24 VDC is measured at P/J594-2 on the DADF Control PWB.
YN
+24 VDC is measured at P/J594-1 on the DADF Control PWB.
YN
Replace the DADF Control PWB (PL 20.3).
Go to Flag 1 and Flag 2. Check the wires for an open circuit. If the wires are good,
replace the DADF Interlock Switch (PL 20.3).
Replace the DADF Control PWB (PL 20.3).
NOTE: In the following step, one of the pins on P/J595 will measure less than +24 VDC. This
is normal operation.
+24 VDC is measured at three of the following pins: P/J595-2, 3, 4, or 5.
YN
Go to Flag 3 and Flag 4. Check the wires for an open circuit. If the wires are good, replace
the DADF Belt Motor (PL 20.6).
Replace the DADF Belt Motor (PL 20.6). If the problem continues, replace the DADF Control
PWB (PL 20.3).
Figure 1 5-703 RAP Circuit Diagram - Belt Motor
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